It was narrated from Abu Sa'eed Al-Khudri that :
the Messenger of Allah (ﷺ) forbade Mulamasah and Munabadhah. (Sahih) Sahl added: "Sufyan said: 'Mulamasah means when a man touches something with his hand without seeing it, and Munabadhah means when he says: "Toss me what you have, and I will toss you what have." (DE)
English reference (DE): Vol. 3, Book 12, Hadith 2170 (DE)
Arabic reference (DE): Book 12, Hadith 2254 (DE)