Raise your hands up to shoulder level when beginning the prayer, bowing in Ruku and raising your head from Ruku.

The hadith narrated by Ibn 'Umar states that the Prophet Muhammad (PBUH) would raise his hands up to shoulder level when beginning the prayer, bowing in Ruku, and raising his head from Ruku. This is an important part of Islamic prayer as it is a sign of humility and submission to Allah. It also serves as a reminder for Muslims to be mindful of their actions during prayer and focus on their connection with Allah. Additionally, this hadith teaches us that we should not raise our hands between two prostrations during salah. This shows us that we should remain humble throughout our prayers and not become distracted by anything else while praying.