Musnad Abu Ya'la al-Mawsili 108:27

'Abd al-A'la narrated to us, Bishr ibn Mansur narrated to us, from 'Umar ibn Nabhan, from Abu Shaddad, from Jabir ibn 'Abd Allah, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Three things, whoever comes with them along with faith, will enter from whichever of the gates of Paradise he wishes, and will be married to the Hur al-'Ayn wherever he wishes: whoever pardons his killer, and pays off a hidden debt, and recites at the end of every obligatory prayer ten times: 'Say, He is Allah, [who is] One' (Surat al-Ikhlas)." He said: So Abu Bakr said: "Or one of them, O Messenger of Allah?" He said: "Or one of them."