Hadith.820 - Imam Jafar ibn Muhammad Al-Sadiq عليه السلام, said:
"I am amazed by one who goes about seeking to fulfil a need while in a state of ritual purity (wudu) — how is it that his need is not met?
And I am amazed by one who seeks to fulfil a need while wearing his turban wrapped under his chin — how is it that his need is not met?"