It is narrated from Hazrat Ata bin Yasar that the Messenger of Allah, peace and blessings be upon him, said: "Whoever Allah saves from the evil of two things will enter Paradise." A man asked: O Messenger of Allah, peace and blessings be upon him! Will you not tell us what those two things are? The Prophet, peace and blessings be upon him, remained silent. Then he said the same thing again, and the man said: Will you not tell us? And the Prophet, peace and blessings be upon him, remained silent. Then he said the same thing again, and the man repeated: Will you not tell us? Then he said the same thing again, and the man kept repeating it, until another person silenced him. Then the Messenger of Allah, peace and blessings be upon him, himself said: "Whoever Allah saves from the evil of two things will enter Paradise: one is that which is between his two jaws (the tongue), and the other is that which is between his two legs (the private parts)." Three times the Prophet, peace and blessings be upon him, said this.

It is narrated from Hazrat Aslam Adawi that Sayyiduna Umar (may Allah be pleased with him) went to Sayyiduna Abu Bakr Siddiq (may Allah be pleased with him), and he was pulling his tongue. Sayyiduna Umar (may Allah be pleased with him) said: Stop! May Allah forgive you. Sayyiduna Abu Bakr Siddiq (may Allah be pleased with him) said: It is this (tongue) that has brought me to destruction.