Purification (Kitab Al-Taharah)
1/145. Chapter:
Saliva Falling On A Garment
Sunan Abi Dawud
حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، قَالَ حَدَّثَنَا حَمَّادٌ، عَنْ حُمَيْدٍ، عَنْ أَنَسٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم بِمِثْلِهِ .
A similar tradition has also been narrated by Anas from the Prophet (ﷺ) through a different chain of narrators.
Reference : Sunan Abi Dawud 390In-book reference : Book 1, Hadith 390English translation : Book 1, Hadith 390