Aḥmad ibn Salamah al-Naysābūrī said: Sulaymān ibn Maṭar narrated to us:

“We were standing at the door of Sufyān ibn ʿUyaynah. We asked permission to enter, but he would not give it. So we said, ‘Let us go in anyway and take him by surprise.’

We broke down his door, went in, and found him sitting. He looked at us and said, ‘Glory be to Allah! You have come into my house without my leave, and al-Zuhrī related to us from Sahl ibn Saʿd that a man once peeped through a hole in the door of the Prophet ﷺ while the Prophet was holding a small comb with which he was scratching his head. The Prophet said, “Had I known you were looking at me, I would have poked your eye out with it. Permission to enter was only prescribed because of the gaze.” (1)’

We said to him, ‘We feel remorse, Abū Muḥammad.’

He replied, ‘You feel remorse? ʿAbd al-Karīm al-Jazarī narrated to us, from Ziyād, from ʿAbd Allāh ibn Maʿqil, from ʿAbd Allāh ibn Masʿūd, that the Prophet ﷺ said, “Remorse is repentance.” (2) Now leave; you have taken the capital of Ibn ʿUyaynah!’

This Sulaymān is the brother of Qatādah ibn Maṭar and—Allah willing—he is trustworthy.
The Ziyād mentioned in the isnād is Ibn Abī Maryam.

Muḥammad ibn Yūsuf al-Firyābī said: I was walking with Ibn ʿUyaynah when he said to me, ‘Muḥammad, nothing makes me disinclined toward you except your pursuit of hadith.’

I replied, ‘And you, Abū Muḥammad—what were you doing other than pursuing hadith?’

He said, ‘At that time I was only a boy with no understanding.’

I say: If an imam of this calibre makes such a remark in an age