Hazrat Aamir (may Allah have mercy on him) says that if someone spends on a foundling (an abandoned child), then (later) nothing is obligatory upon that child.

Hazrat Ali (may Allah be pleased with him) said: Any found child is free. If the person who raised the child demands maintenance, then if the child (upon growing up) is wealthy, he will return it; and if the child is not wealthy, then whatever that person spent on him is charity.

Hazrat Khalid bin Abi Salat (may Allah have mercy on him) narrates that Hazrat Umar bin Abdul Aziz (may Allah have mercy on him) said to me that Hazrat Umar (may Allah be pleased with him) had given a verdict regarding a child born out of wedlock that he should settle the account of his upbringing with the one who raised him for the service rendered, and whatever remains, he should strive for it himself. And I have given the verdict that he should settle the account for the service rendered, and whatever remains should be paid from the public treasury (Bayt al-Mal).

22449 - And I judged: he should be compensated for what he served him, and what remains I will pay on his behalf from the public treasury.

It is narrated from Hazrat Sha’bi (may Allah have mercy on him) that a man’s camel was lost. He found his camel with another person who was feeding and watering it, and had fattened it by giving it fodder. Both of them took their dispute to Hazrat Umar bin Abdul Aziz (may Allah have mercy on him), who was then the governor of Madinah Munawwarah. He gave the verdict in favor of the owner of the camel, and made it obligatory for him to pay the expenses incurred on it. Hazrat Sha’bi (may Allah have mercy on him) says that this decision did not surprise me. Then he said that the man should take his camel; there is no expense or anything else upon it.

22451 - (He said) (1) Al-Sha'bi: That did not please me, and he said: A man takes his camel and there is no maintenance upon him.

Hazrat Saeed bin Al-Musayyib (may Allah have mercy on him) says that I saw Hazrat Ali (may Allah be pleased with him) had made an enclosure for lost camels, in which they were given fodder. They were neither fattened excessively nor made too lean. All expenses were borne by the public treasury (Bayt al-Mal). The camels would raise their necks and look around. If someone presented witnesses for a camel, he would be given it; otherwise, the camels would remain in the enclosure in the same condition. They were not sold. Hazrat Saeed bin Al-Musayyib used to say that if I were made the leader of the Muslims, I would do the same.

Ibrahim (may Allah have mercy on him) said: In my view, the most preferred sale is the one in which the price is written and a tag is attached.

Hazrat Tawus (may Allah have mercy on him) disliked placing price tags on goods for sale. He used to say that I dislike adorning my goods with falsehood.

Hazrat Ibn Sirin (may Allah have mercy on him) says that a person writes whatever price he wants for his goods, then he says that I have written this price so that I may deal justly with you, then he sells that item at a reduced price, selling ten for nine.