Hadith.106 - Imam Jafar ibn Muhammad Al-Sadiq عليه السلام said:
"'When a man performs ablution, let him splash his face with water, for if he is drowsy, it will awaken him, and if it is cold, he will not feel the cold.'".
If a man has a ring, he should rotate it during ablution and remove it during a wash (ghusl).