Narrated It was narrated from Abu Bakr as-Siddeeq that he said to the Messenger of Allah (ﷺ):
Teach me a du'a` that I may say in my prayer. He said: `Say: O Allah. I have wronged myself greatly and no one forgives sins except You, so grant me forgiveness from You and have mercy on me, for You are the Oft-Forgiving, Most Merciful.`
My father told me that the Companions of the Prophet (ﷺ) did not know where to bury the Prophet (ﷺ) until Abu Bakr said: I heard the Messenger of Allah (ﷺ) say: `A Prophet is not to be buried except where he died.” So they removed his bed and dug a grave for him beneath
Abu Bakr stood up and praised and glorified Allah, then he said:O people, you recite this verse: `O you who believe! Take care of your ownselves...` (al-Ma’idah 5:105] until he reached the end of the verse. But if the people see an evildoer and do not stop him, soon Allah will send His punishment upon them all. But I heard the Messenger of Allah (ﷺ) say: “If the people...” And on another occasion he said: We heard the Messenger of Allah...