Forty Hadith an-Nawawi

On the authority of Abu Muhammad al-Hasan ibn Ali ibn Abee Talib (may Allah be pleased with him), the grandson of the Messenger of Allah (peace and blessings of Allah be upon him), and the one much loved by him, who said: I memorised from the Messenger of Allah (peace and blessings of Allah be upon him): “Leave that which makes you doubt for that which does not make you doubt.”

On the authority of Abu Dharr Jundub ibn Junadah, and Abu Abdur-Rahman Muadh bin Jabal (may Allah be pleased with him), that the Messenger of Allah (peace and blessings of Allah be upon him) said: Have taqwa (fear) of Allah wherever you may be, and follow up a bad deed with a good deed which will wipe it out, and behave well towards the people.

On the authority of Abu Abbas Abdullah bin Abbas (may Allah be pleased with him) who said: One day I was behind the Prophet (peace and blessings of Allah be upon him) [riding on the same mount] and he said, “O young man, I shall teach you some words [of advice]: Be mindful of Allah and Allah will protect you. Be mindful of Allah and you will find Him in front of you. If you ask, then ask Allah [alone]; and if you seek help, then seek help from Allah [alone]. And know that if the nation were to gather together to benefit you with anything, they would not benefit you except with what Allah had already prescribed for you. And if they were to gather together to harm you with anything, they would not harm you except with what Allah had already prescribed against you. The pens have been lifted and the pages have dried.” It was related by at-Tirmidhi, who said it was a good and sound hadeeth. Another narration, other than that of Tirmidhi, reads: Be mindful of Allah, and you will find Him in front of you. Recognize and acknowledge Allah in times of ease and prosperity, and He will remember you in times of adversity. And know that what has passed you by [and you have failed to attain] was not going to befall you, and what has befallen you was not going to pass you by. And know that victory comes with patience, relief with affliction, and hardship with ease

On the authority of Abu Najeeh al-’Irbaad ibn Saariyah (may Allah be pleased with him) who said: The Messenger of Allah (peace and blessings of Allah be upon him) gave us a sermon by which our hearts were filled with fear and tears came to our eyes. So we said, “O Messenger of Allah! It is as though this is a farewell sermon, so counsel us.” He (peace and blessings of Allah be upon him) said, “I counsel you to have taqwa (fear) of Allah, and to listen and obey [your leader], even if a slave were to become your ameer. Verily he among you who lives long will see great controversy, so you must keep to my Sunnah and to the Sunnah of the Khulafa ar-Rashideen (the rightly guided caliphs), those who guide to the right way. Cling to it stubbornly [literally: with your molar teeth]. Beware of newly invented matters [in the religion], for verily every bidah (innovation) is misguidance.” [Abu Dawud]

On the authority of Muadh bin Jabal (may Allah be pleased with him) who said: I said, “O Messenger of Allah, tell me of an act which will take me into Paradise and will keep me away from the Hellfire.” He (peace and blessings of Allah be upon him) said, “You have asked me about a great matter, yet it is easy for him for whom Allah makes it easy: worship Allah, without associating any partners with Him; establish the prayer; pay the zakat; fast in Ramadhan; and make the pilgrimage to the House.” Then he (peace and blessings of Allah be upon him) said, “Shall I not guide you towards the means of goodness? Fasting is a shield; charity wipes away sin as water extinguishes fire; and the praying of a man in the depths of the night.” Then he (peace and blessings of Allah be upon him) recited: “[Those] who forsake their beds, to invoke their Lord in fear and hope, and they spend (charity in Allah’s cause) out of what We have bestowed on them. No person knows what is kept hidden for them of joy as a reward for what they used to do.” [as-Sajdah, 16-17] Then he (peace and blessings of Allah be upon him) said, “Shall I not inform you of the head of the matter, its pillar and its peak?” I said, “Yes, O Messenger of Allah.” He (peace and blessings of Allah be upon him) said, “The head of the matter is Islam, its pillar is the prayer and its peak is jihad.” Then he (peace and blessings of Allah be upon him) said, “Shall I not tell you of the foundation of all of that?” I said, “Yes, O Messenger of Allah.” So he took hold of his tongue and said, “Restrain this.” I said, “O Prophet (ﷺ) of Allah, will we be taken to account for what we say with it?” He (peace and blessings of Allah be upon him) said, “May your mother be bereaved of you, O Muadh! Is there anything that throws people into the Hellfire upon their faces — or: on their noses — except the harvests of their tongues?”