Hadith 1:105
Narrated Anas bin Malik (rad):
Allah’s Messenger (ﷺ) used to remove his ring when entering the lavatory. [Reported by Al-Arba’a and it is defective].
عَنْ أَنَسِ بْنِ مَالِكٍ - رضى الله عنه - قَالَ: { كَانَ رَسُولُ اَللَّهِ - صلى الله عليه وسلم -إِذَا دَخَلَ اَلْخَلَاءَ وَضَعَ خَاتَمَهُ } أَخْرَجَهُ اَلْأَرْبَعَةُ, وَهُوَ مَعْلُول ٌ (103)
Original Reference: Bulugh al-Maram 87