Bismillaah:

Ata’ ibn Yasar رحمه الله reported:

A man came to Ibn Abbas رضي الله عنه and he said, “I proposed to a woman and she refused to marry me. Another man proposed to her and she was happy to marry him. I became jealous and I killed her. Is there any repentance for me?” Ibn Abbas said, “Is your mother alive?” The man said no. Ibn Abbas said, “Repent to Allaah Almighty and draw close to him in worship as much as you can.” I went to Ibn Abbas and I asked him, “Why did you ask if his mother was alive?” Ibn Abbas said, “Verily, I do not know of any deed better to bring one closer to Allaah Almighty than goodness to one’ mother.”

Takhreej:

{ Imam Al Bukhari in his Adab al Mufrad #4 and graded as Saheeh by Shaykh Al Albaani رحمهم الله }

***And Allaah عزوجل knows best ***