Ibn ‘Umar reported God’s Messenger as saying, “If anyone with-holds grain for forty days thereby desiring a high price, he has renounced God and God has renounced him.”
‘Umar b. al-Khattab told of hearing God’s Messenger say, “If anyone keeps grain from the Muslims waiting for the price to rise, God will smite him with tubercular leprosy* and insolvency.”
Ibn Majah, Baihaqi, in Shu'ab al-iman, and Razin in his book transmitted it.
Mu‘adh told of hearing God’s Messenger say, “The man who withholds goods is evil. If God lowers prices he is grieved, and if He raises them he is happy.”
Baihaqi transmitted it in Shu'ab al-lman and Razin in his book.
Anas said that when prices were high in the Prophet’s time the people asked him to fix prices for them, but he replied, “God is the One who fixes prices, who withholds, gives lavishly and provides, and I hope that when I meet my Lord none of you will have any claim on me for an injustice regarding blood or property.”
Tirmidhi, Abu Dawud, Ibn Majah and Darimi transmitted it.