Hadith.457 - Imam Muhammad ibn Ali Al-Baqir عليه السلام said:
"When a believer enters their grave, it is proclaimed: 'Behold, your first gift is Paradise! And the first gift for those who followed your funeral procession is forgiveness.'"
The Sunnah (recommended practice) is to carry the bier from its four sides, and any additional carrying (from other angles) after that is considered voluntary.
