Hazrat Urwah (may Allah have mercy on him) says that a well dug in the early days of Islam will have a circumference of twenty-five cubits, a fully dug well will have fifty cubits, and a well for agriculture will have three hundred cubits. Hazrat Imam Zuhri (may Allah have mercy on him) says that I have received information that a spring well will have six hundred cubits.

22687 - He said: Al-Zuhri, and it reached me that the protected area (of the spring) (1) is (five hundred) (2) cubits.

Hazrat Sha'bi (may Allah have mercy on him) said that the edge of the well is forty cubits.

22689 - From Jabir, from al-Sha'bi (they both said): The protected area around a well is forty cubits.

It is narrated from Hazrat Saeed bin Al-Musayyib (may Allah have mercy on him) that the Noble Prophet (peace and blessings be upon him) said: The parapet of a well dug in the early days of Islam will be twenty-five cubits, and that of an old well will be fifty cubits. Hazrat Saeed (may Allah have mercy on him) says that the well of Dhahab will be three hundred cubits.

22691 - Sa'id said: The protected area around a well for cultivation is three hundred cubits.

It is narrated from Hazrat Bilal bin Yahya Al-Issa, may Allah have mercy on him, that the Noble Prophet, peace and blessings be upon him, said: There is no enclosure except for three things: the enclosure of a well, the enclosure of people sitting in a gathering. (The third thing is not mentioned here, but it is found in other books of hadith, and that is: the length of a horse, meaning the enclosure of the place where a person ties his horse.)

Ibn Mubarak narrated to us, from Abu Hamzah al-Sukkari, from Yazid al-Nahwi, from Mujahid, from Abu Hurairah, who said: A woman from Quraysh had a slave boy whom she had set as a manager, then she wanted to make a contract of manumission with him. The Messenger wrote to Abu Hurairah, and said: Make a contract of manumission with him; if he fulfills his contract, then so be it, and if something happens to you, he is free. He said: And I think it was for what he owed to him. (Bayhaqi 314)

It is narrated from Hazrat Ibn Masood that if a person sells the service of his mudabbar slave, then whatever the master has already received will be counted for him, and whatever remains will not be obligatory upon the slave.

It is narrated in a similar way from Hazrat Ibn Masood (may Allah have mercy on him), but with this addition: When your companion dies, then there is nothing left for you.