Mukhtasar Muslim

Narrated from Sayyiduna Abu Sa'id Khudri, may Allah be pleased with him, that there were some hypocrites during the blessed era of the Messenger of Allah, peace and blessings be upon him, who would stay behind when you, peace and blessings be upon him, went out for battle, and they were pleased to remain at home behind the Noble Prophet, peace and blessings be upon him. Then when you, peace and blessings be upon him, returned, they would make excuses to you, swear oaths, and wish that people would praise them for deeds they had not done. Then Allah Almighty revealed this verse: "Do not think of those who rejoice for what they have done, and love to be praised for what they did not do, as being safe from the punishment; for them is a painful punishment."