Hadith 11:252
Yahya ibn Abi Bukayr narrated to us, Zuhayr ibn Muhammad narrated to us, from Abdullah ibn Sahl ibn Hunayf, that Sahl narrated to him that the Prophet, may Allah bless him and grant him peace, said: "Whoever assists a mujahid in the way of Allah, or a warrior in his time of hardship, or a mukatab (a slave in a contract of manumission) in his neck (i.e., his ransom), Allah will shade him on a day when there is no shade except His shade."
حدثنا يحيى بن أبي بكير نا زهير بن محمد عن عبد الله بن سهل بن حنيف أن سهلا حدثه أن النبي صلى الله عليه وسلم قال من أعان مجاهدا في سبيل الله أو غازيا في عسرته أو مكاتبا في رقبته أظله الله يوم لا ظل إلا ظله