The ruling on raising the index fingers of both hands in prayer

Question:
Some of the worshippers raise the index fingers of both their left and right hands during the tashahhud, and some of them wear their glasses during the prayer, and some of them leave their automatic alarm device on, which usually makes sounds during the prayer, causing the worshippers to be distracted. What is the ruling on these actions?

Answer:
It is prescribed for the worshipper to point with the index finger of his right hand when he sits for the first and last tashahhud, and it is recommended that he move it when making supplication in the last tashahhud. He should curl the ring finger and the little finger, and loop the thumb with the middle finger, and place his hand on his right thigh, while the left hand is on his left thigh, with its fingers extended toward his knee. He should not point with the index finger of the left hand, but rather extend it with the rest of the fingers; because that has not been transmitted from the Prophet (peace and blessings be upon him) in what we know of his Sunnah, may Allah pray upon him and grant him peace.
It is authentic from the Messenger of Allah (peace and blessings be upon him) that he used to curl all his fingers with his right hand except the index finger in his first and last tashahhud. So it is recommended for the worshipper to do this sometimes and that sometimes; because both matters are authentic from the Messenger of Allah (peace and blessings be upon him): looping the thumb and the middle finger while curling the ring finger and the little finger, and pointing with the index finger, and curling all the fingers except the index finger.
It is recommended for the worshipper to turn off the phone and alarm device so that it does not disturb himself or others, and it is disliked for him to be occupied with wearing glasses during the prayer if there is no need for it. And success is from Allah.