In 1966 the family immigrated to Israel[3] and lived in Kiryat Sanz in Netanya, where he studied and was close to Rabbi Yekusiel Yehudah Halberstam.

In its early years, Rabbi Baruch Dov Povarsky, head of the Ponevezh Yeshiva, worked with him.

Weiss is a Torah scholar whose lectures and halachic responsa influence poskim (decisors of points of Jewish law) internationally.

Weiss wrote the Minchas Asher books on Jewish holidays, Torah, medicine and responsa.

In 2021 he published a volume of the Minchas Asher responsa, which deals with the issues raised by the coronavirus in Israel and its implications in Halakha (Jewish law).