Imam Bukhari narrates: Umar bin Hafs narrated to us, he said: My father narrated to us, he said: al-A'mash narrated to us, he said: Abu Salih narrated to us from Abu Hurairah, may Allāh be pleased with him, he said that the Prophet ﷺ said:

No prayer is heavier upon the hypocrites than the Fajr and Isha prayers, and if they knew how much reward there is in them, they would certainly come to these prayers even if they had to crawl. Indeed, the truth is that I intended to command the mu'adhdhin to give the Adhan, then the Iqamah for prayer be said, then I command a man to lead the prayer, then I take a flame of fire and burn down those who did not come out to pray.