Differing grades of the chain
Sunan an-Nasa'i 113
Al-Qaisi narrated that he was with the Messenger of Allah (ﷺ) on a journey, and some water was brought to him. He poured some onto his hands from the vessel and washed them once, then he washed his face and each arm once, and he washed his feet with both hands.
فَأُتِيَ بِمَاءٍ فَقَالَ عَلَى يَدَيْهِ مِنَ الإِنَاءِ فَغَسَلَهُمَا مَرَّةً وَغَسَلَ وَجْهَهُ وَذِرَاعَيْهِ مَرَّةً مَرَّةً وَغَسَلَ رِجْلَيْهِ بِيَمِينِهِ كِلْتَيْهِمَا .