While in Narbonne, he engaged in a halachic discussion with Rabbi Shlomo ibn Aderet about coinage that was devalued by 25%.
Ibn Aderet himself, however, had engaged in astral magic earlier in his life and denied that it was in any way offensive to halakha.
[2] Nonetheless, in 1305 ibn Aderet issued a local ban against extreme allegory and the study of Greek physics and metaphysics by anyone under the age of 25.
Menachem Meiri and Jedaiah ben Abraham Bedersi, rejected this ban, as well as accusations for lax observance.
He further stated that all the negative things that had been said about these two men were pure slander; because, if it were true that Levi had deviated from the straight path, Samuel Sulami would not have welcomed him into his house.
[7] From Perpignan to Marseilles there is not another who can be compared with Samuel Sulami in knowledge of the Law, benevolence, piety and humility.