Reference for Bava Kamma 165:5

תניא רבי אליעזר הגדול אומר המגדל כלבים כמגדל חזירים למאי נפקא מינה למיקם עליה בארור

Abtolmus b. Reuben however was permitted to cut his hair in the Gentile fashion as he was in close contact with the Government. So also the members of the family of Rabban Gamaliel were permitted to discuss Grecian Wisdom on account of their having had associations with the Government.

Jastrow

Jastrow

Jastrow

Jastrow

Jastrow