Imam Ahmad recorded that Abu Hurayrah said,

"I said:_O Messenger of Allah, when I see you I feel happy and content, tell me about everything._''

He said,

«كُلُّ شَيْءٍ خُلِقَ مِنْ مَاء»

(Everything was created from water.)

"I said, tell me about something which, if I do it, I will enter Paradise.''

He said:

«أَفْشِ السَّلَامَ، وَأَطْعِمِ الطَّعَامَ، وَصِلِ الْأَرْحَامَ، وَقُمْ بِاللَّيْلِ وَالنَّاسُ نِيَامٌ، ثُمَّ ادْخُلِ الْجَنَّةَ بِسَلَام»

(Spread (the greeting of) Salam, feed others, uphold the ties of kinship, and stand in prayer at night when people are sleeping. Then you will enter Paradise in peace.)

This chain of narration fulfills the conditions of the Two Sahihs, apart from Abu Maymunah, who is one of the men of the Sunans, his first name was Salim; and At-Tirmidhi classed him as Sahih.

am trying to connect the topic and the post

OP needs to reframe this post and topic!