Natyashastra
हिमवर्षहते बद्धे वरिणाप्लवसंश्रिते । स्वप्नायिते च संभ्रान्ते नतसंस्फोटने तथा ॥ १७९॥
In situations of being struck by snow, bound, relying on water, in a dreamlike state, in confusion, or when prostrating, hand gestures should not be used.
english translation
himavarSahate baddhe variNAplavasaMzrite । svapnAyite ca saMbhrAnte natasaMsphoTane tathA ॥ 179॥
hk transliteration by Sanscript