It is narrated from Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Do the enduring good deeds (al-baqiyat al-salihat) in abundance." It was said: O Messenger of Allah! What are they? He (peace and blessings be upon him) said: "These words of the Islamic Millah." It was asked: What are they? He (peace and blessings be upon him) said: "Declaring the greatness of Allah (takbir), affirming His oneness (tahlil), declaring His glory (tasbih), praising Him (tahmid), and saying 'La hawla wa la quwwata illa billah' (There is no strength nor power except with Allah)." This is the most authentic chain of the Egyptian narrators, but the two Shaykhs did not record it.