Sunan an Nasai
5547
Sahih Isnaad+2

It was narrated from Ibn Abi Laila, from one of the Companions of the Prophet [SAW], that:The Prophet [SAW] forbade (mixtures of) Al-Balh and dried dates, and of raisins and dried dates

Sahih IsnaadAbu Ghuddah
Sahih IsnaadAl-Albani