Abu Dawud said: This tradition has also been transmitted by 'Amr b. al-Harith from Ka'b b. 'Alqamah, from Ibn Shamasah on the authority of 'Uqbah.
In-book : Book 22, Hadith 82
English translation : Book 21, Hadith 3317
22. Oaths and Vows (Kitab Al-Aiman Wa Al-Nudhur)
باب مَنْ نَذَرَ نَذْرًا لَمْ يُسَمِّهِ