Bahr bin Marrar narrated that his grandfather Abu Bakrah said:"The Messenger of Allah passed by two graves, and he said: 'They are being punished but they are not being punished for anything major. One of them is being punished because of urine, and the other is being punished because of backbiting
Hadith No. 349
Sunan Ibn Majah
Gradings:
Al-Albani:
Hasan Sahih
Muhammad Fouad Abd al-Baqi:
Hasan Sahih
Shuaib Al Arnaut:
Sahih Lighairihi
Zubair Ali Zai:
Sahih