What is the ruling on clapping with the palms? Second: interlacing the fingers. Third: whistling with the mouth. Fourth: raising the hand in conjunction with the greeting. Fifth

The Shaykh : The questioner says here, "Peace be upon you." If you had said, "Peace be upon you all," it would have been better for you. "Peace be upon you all, and the mercy of Allah and His blessings." What is the ruling on each of the following matters, with the evidence cited? Clapping with the palms; second, snapping the fingers and interlacing the fingers; third, whistling with the mouth; fourth, raising the hand in conjunction with the greeting, or substituting it for the greeting when at a distance; fifth, wearing long garments for men; sixth, drinking ink?