The Messenger of Allah ﷺ commanded us to perform ablution thoroughly.
حدثنا وكيع حدثنا سفيان عن أبي جهضم عن عبد الله بن عبيد الله
أمرنا رسول الله ﷺ بإسباغ الوضوء
No references are available.
Its isnad is sahih, and it is a shortened version of 1977. Abdullah bin Ubaydullah bin Abbas, his reliability was established earlier there. Here, in the two original manuscripts, it appears as "from Ubaydullah bin Abdullah," which is certainly a mistake, for Abu Jahdam Musa bin Salim only narrates from Abdullah bin Ubaydullah bin Abbas, and this hadith is indeed his. Another hadith, 2092, will come as a shortened version of 1977 with this same isnad given correctly.