Abdullah bin Amr bin As reported,

Zinba al-Judhami had a slave named Sandar. Zinba found him kissing one of his slave-girls, so he castrated him and cut off his nose. Sandar went to the Prophet ﷺ, who summoned Zinba and said, "Do not burden them with what they cannot bear. Feed them from what you eat, clothe them from what you wear. If you are pleased with them, keep them, and if you dislike them, sell them. Do not torture Allah's creation. Whoever mutilates a slave or burns him with fire, the slave is freed and is the freedman of Allah and His Messenger."So Sandar was set free.Sandar then said, "Recommend me to someone, Messenger of Allah."He replied, "I recommend you to every Muslim."When the Messenger of Allah ﷺ died, Sandar came to Abu Bakr and said, "Honor the recommendation of the Messenger of Allah ﷺ regarding me." Abu Bakr provided him with a regular allowance until Abu Bakr died.Then Sandar came to Umar bin Khattab and said, "Honor the recommendation of the Messenger of Allah ﷺ regarding me."Umar replied, "Yes. If you wish to stay with me, I will give you the same allowance Abu Bakr used to give you. Otherwise, choose a place you like and I will write a letter for you."Sandar said, "Egypt, for it is a fertile land."So Umar wrote on his behalf to Amr bin As, instructing him to honor the recommendation of the Messenger of Allah ﷺ regarding him. When Sandar arrived to Amr bin As, Amr allotted him a wide tract of land and a house, and Sandar lived there off the wealth of Allah. When he died, it was reclaimed.

عن عبد الله بن عمرو بن العاص قال

كان لزنباع الجذامي غلام يقال له سندر، فوجده يقبل جارية له فجبه، وجدع أنفه، فأتى سندر النبي، ﷺ، فأرسل النبي ﷺ إلى زنباع فقال: لا تحملوهم ما لا يطيقون، وأطعموهم مما تأكلون، واكسوهم مما تلبسون، فإن رضيتم فأمسكوا، وإن كرهتم فبيعوا، ولا تعذبوا خلق الله، ومن مثل به أو حرق بالنار فهو حر وهو مولى الله ومولى رسوله، فأعتق سندر فقال: أوص بي يا رسول الله، قال: أوصي بك كل مسلم، فلما توفي رسول الله ﷺ أتى أبا بكر فقال: احفظ في وصية رسول الله ﷺ فأجرى عليه أبو بكر حتى توفي، ثم أتى عمر بن الخطاب فقال: احفظ في وصية رسول الله ﷺ فقال: نعم، إن أحببت أن تقيم عندي أجريت عليك ما كان يجري عليك أبو بكر، وإلا فانظر مكانا تحبه أكتب لك كتابا، فقال سندر: مصر فإنها أرض ريف، فكتب له عمر إلى عمرو بن العاص أن احفظ فيه وصية رسول الله ﷺ فلما قدم على عمرو بن العاص قطع له أرضا واسعة، ودارا وجعل يعيش فيها سندر في مال الله، فلما مات قبضت.