General Behavior (Kitab Al-Adab)

Dawud :: Book 41 : Hadith 4803

Narrated AbuHurayrah:

AbulQasim (peace_be_upon_him) said: When one of you is in the sun (Shams)--Makhlad's version has "fay'"--and the shadow withdraws from him so that he is partly in sun and partly in shade, he should get up.