Abdullah bin Wahb عبد الله بن وهب بن مسلم القرشي · The Book of Oaths and Vows

"My sister vowed to walk to the House of Allah, and she told me to ask the Messenger of Allah about that. So I asked the Prophet for her and he said: 'Let her walk, and let her ride.'"

"Tell her to cover her head and ride, and fast for three days."

"Sa'd bin 'Ubadah came to the Prophet and said: 'My mother died and she had sworn a vow, but she did not fulfill it.' He said: 'Fulfill it on her behalf.'"

"O Messenger of Allah! I want to give all my wealth in charity for Allah and His Messenger." The Messenger of Allah said to him: "Keep some of your wealth for yourself; that is better for you."

"I heard Ka'b bin Malik narrating his Hadith about when he stayed behind and did not join the Messenger of Allah on the campaign to Tabuk. (he said) I said: 'As part of my repentance I want to give my wealth in charity for Allah and His Messenger.' The Messenger of Allah said: 'Keep some of your wealth for yourself; that is better for you.' I said: 'I will keep for myself my share that is in Khaibar.'"