May one shake only with one hand when greeting?
The Sunnah and correct method of making Musaafaha is with both hands. One should avoid using only one hand in these times as this has become the practice of the Kuffaar and some deviant sects.
Checked and Approved By:
Mufti Muhammed Saeed Motara Saheb D.B.
Saheeh Al-Bukhaari 2/926