Sunan an-Nasa'i 3108
سنن النسائي#3108SahihIt was narrated from Abu Hurairah that the Prophet (ﷺ) said:"No man will enter the Fire who weeps for fear of Allah, Most High, until the milk goes back into the udders. And the dust (of Jihad) in the cause of Allah, and the smoke of Hell will never be combined
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih
In-book reference: 25:24