110 Hadith Qudsi, Chapter: 110 Ahadith Qudsi (Sacred Hadith)

The tribe of Quraish said to the Prophet (SAW) Supplicate your Lord that He transforms (the rocks of) Safa into gold. Then we would believe in you. He (the Prophet (SAW)) asked: Really, will you? They said: Yes. He (the narrator said: So the Prophet (SAW)) invoked Allah (to this effect). Then Jibrael came to him and said: Your Lord (SWT) conveys His greetings to you and says: If you wish, I shall transform Safa into gold but those who disbelieve after that will suffer a punishment so severe that nobody in the worlds would suffer, or if you wish, I can open for them the door of repentance and mercy. The Prophet (SAW) said: Rather, the door of repentance and mercy. (This Hadith is sound and reported in Musand Ahmad).