‘Mahlab bin Abi Safrah narrates from those people who heard from the Prophet Muhammad (peace be upon him), he was saying:“If the enemy attacks you at night, then say «حم لا ينصرون» .”1. Imam Tirmidhi says:

1- Some people have narrated from Abu Ishaq Sabi’i in the same way as Sufyan Thawri’s narration, and from Abu Ishaq this hadith has also come through a mursal chain via «عن المهلب بن أبي صفرة عن النبي صلى الله عليه وسلم» .
2- In this chapter, there is also a narration from Salamah bin Al-Akwa’ (may Allah be pleased with him).