Jami At Tirmidhi
2751
Sahih+3

Narrated Wahb bin Hudaifah:that the Messenger of Allah (ﷺ) said: "A man has more right to his seat. If he leaves for some need of his, then he returns, then he has more right to his seat

SahihAhmad Muhammad Shakir
SahihAl-Albani