(160) باب فِي النَّفْلِ مِنَ الذَّهَبِ وَالْفِضَّةِ وَمِنْ أَوَّلِ مَغْنَمٍ
The tradition mentioned above has also been transmitted by 'Asim bin Kulaib through a different chain of narrators to the same effect.
Reference: Sunan Abi Dawud 2754
In-book reference: Book 15, Hadith 278
English translation: Book 14, Hadith 2748