Abu al-Bakhtari (may Allah have mercy on him) said: We set out for Hajj, and when we stopped at Batn Nakhl we saw the new crescent moon. Some people said: It is three nights old, and some said: It is two nights old. We came to Ibn Abbas (may Allah be pleased with them both) and said: We saw the new crescent moon; some people said: It is three nights old, and some said: It is two nights old. He said: "The Messenger of Allah (peace and blessings be upon him) extended (the month) until it is sighted, so it belongs to the night on which you saw it."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 12633
Abu al-Bakhtari (may Allah have mercy on him) narrated: I asked Sayyiduna Ibn Abbas (may Allah be pleased with them both) about salam (advance payment sale) in date-palms, and he said: "The Messenger of Allah (peace and blessings be upon him) forbade selling (the produce of) date-palms until it can be eaten from, and until it is secured." I asked: What is meant by being secured? A man among those present said: "Until it is cut or stored."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 12634