Burayda reported,

When the Messenger of Allah ﷺ conquered Mecca, he came to the foot of a grave and sat beside it, taking the posture of someone addressing another, while the people sat around him. Then he stood up weeping. Umar met him, and he was among the boldest of people with him, and said, "May my father and mother be sacrificed for you, Messenger of Allah, what has made you weep?"He replied, "This is my mother's grave. I asked my Lord for permission to visit it, and He granted me permission. I asked Him for permission to seek forgiveness for her, but He did not grant me that. So I remembered her, my heart softened, and I wept."The narrator said, "No day was seen on which he wept more than he did that day."

Azami 8523

Sahih

عن بريدة قال

لما فتح رسول الله ﷺ مكة أتى جذم قبر، فجلس إليه، فجعل كهيئة المخاطب، وجلس الناس حوله، فقام وهو يبكي، فتلقاه عمر- وكان من أجرأ الناس عليه- فقال: بأبي أنت وأمي يا رسول الله ما الذي أبكاك؟ قال: هذا قبر أمي، سألت ربي الزيارة فأذن لي، وسألته الاستغفار فلم يأذن لي، فذكرتها، فرقت نفسي فبكيت. قال: فلم ير يوم كان أكثر باكيا منه يومئذ.

الأعظمي 8523صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Biography of the Prophet ﷺ
Section
Parents of the Prophet ﷺ
Numbering
Jami al-Kamil 8523 (2nd edition)
Azami 8523