Abu al-Malih narrates from his father, Sayyiduna Usamah (may Allah be pleased with him); he said: I was present with the Messenger of Allah (peace and blessings be upon him) at Hunayn, and a light rain fell on us. Then the caller of the Messenger of Allah (peace and blessings be upon him) called out: "Whoever wishes to pray in his lodging, let him pray."
Hadith Referenceالمعجم الكبير للطبراني / باب الألف / 496