We have related from him ﷺ that he ate with a leper, opposing | Al-Matrūkūn

We have related from him ﷺ that he ate with a leper, opposing the [way of the] people of jāhiliyyah in their practice of not eating with him out of fear of the transmission of his disease.
روينا عنه عليه السلام أنه أكل مع مجذوم خلافًا لأهل الجاهلية فيما كانوا يفعلونه من ترك مؤاكلته خوفًا أن يعديهم داؤه،

al-ʿAbbās b. Muḥammad narrated to us: Yūnus b. Muḥammad narrated to us from Mufaḍḍal b. Faḍālah, from Ḥabīb b. al-Shahīd, from Muḥammad b. al- Munkadar, from Jābir: That the Prophet ﷺ took the hand of a leper, sat him next to himself and said: “Eat, trusting Allah and in reliance upon him.”
حدثنا به العباس ابن محمد، حديثنا يونس بن محمد، عن مفضل بن فضالة، عن حبيب بن الشهيد، عن محمد بن المنكدر، عن جابر: (أن النبى عليه السلام أخذ بيد مجذوم فأقعده معه، وقال: كل ثقة بالله وتوكلا عليه).

Others spoke with authenticity of this narration [of fleeing from the leper]. They said: The Prophet ordered fleeing from the leper and to take caution from eating and drinking with him. Hence, it is not permissible for the one who knew his command regarding that except to flee from the leper.
وقال آخرون بتصحيح هذا الخبر، وقالوا: أمر النبى بالفرار من المجذوم واتقاء مؤاكلته ومشاربته، فغير جائز لمن علم أمره بذلك إلا الفرار من المجذوم،

And it is not permissible to look towards them continuously due to his ﷺ prohibition from doing that.
وغير جائز إدامته النظر إليهم لنهيه عليه السلام عن ذلك،

A mention of those who said that:
ذكر من قال لك

Maʿmar related from al-Zuhrī that ʿUmar b. al-Khaṭṭāb said to Muʿayqīb: “Sit away from me the distance of a spear.” And he would have that illness (leprosy), and he was a Badarī.
روى معمر عن الزهرى أن عمر بن الخطاب قال لمعقيب: (اجلس منى قيد رمح. وكان به ذلك الداء وكان بدريًا)

And Abū al-Zinād related from Khārijah b. Zayd who said: When food was brought to ʿUmar and Muʿayqīb was near him, he would say: “Eat from the side nearest to you and by Allah, [even] if it was someone besides you, he would [not be allowed] to sit closer to me than the length of a spear.”
وروى أبو الزناد عن خارجة بن زيد قال: (كان عمر إذا أتى بالطعام وعنده معيقيب قال: كل مما يليك، وايم الله لو غيرك به مابك ماجلس منى على أدنى من قيد رمح)

And Abū Qilābah used to take caution from the leper.
وكان أبو قلابة يتقى المجذوم.

Ibn Baṭṭāl, Sharḥ Ṣaḥīḥ al-Bukhārī 9/411
ابن بطال، شرح صحيح البخارى ٩/٤١١

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