Alqama bin Qays علقمة بن قيس بن عبد الله · The Book on Jana''iz (Funerals)

"I saw the Messenger of Allah while he was dying. He had a cup with water in it, he put his hand in the cup then wiped his face with the water, then said: 'O Allah! Help me with the throes of death and the agony of death.'"

The Prophet said: "The believer dies with sweat on his brow."

The Prophet entered upon a young man while he was dying. So he said: "How do you feel?" He said: "By Allah! O Messenger of Allah! Indeed I hope in Allah and I fear from my sins." So the Messenger of Allah said: "These two will not be gathered in a worshipper's heart at a time such as this, except that Allah will grant him what he hopes and make him safe from what he fears."