Mahum-e- Hadith: Apne hi waldein par laanat bhejna wala shaksh
Abdulllah bin Umar Radhi Allahu Anhu se rivayat hai ki Rasool-Allah SallAllahu Alaihi Wasallam ne farmaya yakeenan kabira gunaho mein se ye bhi hai ki koi apne waldein par laanat bheje (logo ne pucha) ki Ya Rasool-Allah Sal-Allahu Alaihi Wasallam koi shakhsh apne hi waldein par laanat kaise bhejega to Aap Sal-Allahu Alaihi Wasallam ne farmaya jab koi shakhs dusro ke walid ko bura kahega to dusra bhi uske walid aur maa ko bura kahega (aur is tarah wo kabira gunaah kar dega).
Sahih Bukhari,Vol 7, 5973
Narrated Abdullah bin Amr Radhi Allahu AnhuThe Prophet Sal-Allahu Alaihi Wasallam said. It’s one of the greatest sins that a man should curse his parents.” It was asked (by the people),”O ALLAH’s Messenger Sal-Allahu Alaihi Wasallam ! How does a man curse his parents?” The Prophet Sal-Allahu Alaihi Wasallam said,”‘The man abuses the father of another man and the latter abuses the father of the former and abuses his mother.”
Sahih Bukhari, Vol. 8, Book 73, Hadith 4