Sunan of Abu Dawood Book 10, Hadith 1703

حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا حَمَّادٌ، حَدَّثَنَا سَلَمَةُ بْنُ كُهَيْلٍ، بِإِسْنَادِهِ وَمَعْنَاهُ قَالَ فِي التَّعْرِيفِ قَالَ عَامَيْنِ أَوْ ثَلاَثَةً ‏.‏ وَقَالَ ‏"‏ اعْرِفْ عَدَدَهَا وَوِعَاءَهَا وَوِكَاءَهَا ‏"‏ ‏.‏ زَادَ ‏"‏ فَإِنْ جَاءَ صَاحِبُهَا فَعَرَفَ عَدَدَهَا وَوِكَاءَهَا فَادْفَعْهَا إِلَيْهِ ‏"‏ ‏.‏ قَالَ أَبُو دَاوُدَ لَيْسَ يَقُولُ هَذِهِ الْكَلِمَةَ إِلاَّ حَمَّادٌ فِي هَذَا الْحَدِيثِ يَعْنِي ‏"‏ فَعَرَفَ عَدَدَهَا ‏"‏ ‏.‏

The above mentioned tradition has also been transmitted by Salamah. Bin Kuhail through a different chain to the same effect. The version has ; about making the matter known he said ; " two years or three." He said :Remember its number, its container and its string. The version adds : If its owner comes, and tells its number and its string, then give it to him. Abu Dawud said : None of the narrators said this word in this tradition except Hammad ; That is, " If he tells its number."