Musnad Abu Ya'la al-Mawsili 54:6

Abu al-Rabi' al-Zahrani narrated to us, Abdullah bin Yazid narrated to us, Sa'id bin Abi Ayyub narrated to me, Abu Marhum 'Abd al-Rahim bin Maymun narrated to me, from Sahl bin Mu'adh bin Anas, from his father, from the Prophet (peace and blessings of Allah be upon him), who said: "Whoever eats food and says: 'Praise be to Allah who fed me this and provided it for me without any power or strength from myself,' his past sins will be forgiven. And whoever wears a garment and says: 'Praise be to Allah who clothed me with this and provided it for me without any power or strength from myself,' his past sins will be forgiven."