Mukhtasar Bukhari

Narrated from Sayyiduna Abu Humayd As-Sa'idi (may Allah be pleased with him) that the people asked, "O Messenger of Allah! How should we send blessings upon you?" The Messenger of Allah (peace and blessings of Allah be upon him) said: "Say: O Allah! Send Your mercy upon Muhammad and upon his wives and his offspring, as You sent Your mercy upon the offspring of Ibrahim (peace be upon him). And send blessings upon Muhammad and upon his wives and his offspring, as You sent blessings upon the offspring of Ibrahim (peace be upon him). Surely, You are Praiseworthy, Glorious."