Al-Sha'bi narrates: Al-Rabi' bin Khuthaym said: "Whoever says: 'There is no true god except Allah, alone, He has no partner; His is the dominion and His is all praise; He gives life and causes death, and He has power over all things,' it will be like one who has freed four persons from the descendants of Isma'il (peace be upon him)." (Al-Sha'bi) said: I asked al-Rabi' bin Khuthaym: From whom did you hear this? He said: From Amr bin Maymun. So I went to Amr bin Maymun and asked: From whom did you hear this? He said: From Ibn Abi Layla. So I went to Ibn Abi Layla and asked: From whom did you hear this? He said: From Abu Ayyub al-Ansari, who narrated it from the Messenger of Allah (peace and blessings be upon him).
Hadith Referenceالمعجم الكبير للطبراني / باب الخاء / 4006