‘A’ishah (A.S.) narrated that the Prophet (PBUH) said:
“Everyone has been created with three hundred and sixty Joints. Whoever mentions Allah’s greatness (says Allahu Akbar), praises Allah, extols Allah, and seeks forgiveness from Allah and removes stones from the path of the people, enjoins what is good and forbids the evil to the amount of those three hundred and sixty joints (sulama), he walks on that Day (of Judgment) having distanced himself from the Hell fire.”
Abu Dharr (A.S.) narrated “the Prophet said (PBUH):
“In every morning there is a charitable act on the joints of any of you. Every tasbihah (to say: subhanallah, i.e. Glory be to Allah) is a charitable act; every tahmidah (to say: al-hamdu lillah, i.e. Praise be to Allah) is a charitable act, every tahlilah (to say: la ilaha illallah, i.e. There is none worthy of worship but Allah) is a charitable act; every takbirah (to say: Allahu akbar, i.e. Allah is the Greatest) is a charitable act; enjoining the right is a charitable act; forbidding the evil is a charitable act. However, to fulfill that charity, it is sufficient to pray two rak’at of Duha.”
The word “Sulama” in Arabic refers to the joint. It can be also used for all the body bones and the joints between them. Most of the body bones are movable, but some are fixed as those of the skull.
The Explanation of the Hadith
The hadith clearly directs Muslims to be grateful to Allah, the Almighty, Who dignifies and honors man, over all other creatures, by giving him a straight upright skeleton. It has been created of a huge number of big and small bones and cartilage. Between every two bones, there is a joint to enable the bones and to protect the body’s soft parts. These joints enable the person to stand up, sit down, lie on his side, bend, stretch, etc. Every Muslim who worships Allah, Glorified be He, must be grateful to Allah for every one of these joints, and offer a charitable act, in way of gratitude to His Creator, for this great blessing, without which life would have been impossible.
It is amazing that the Prophet (PBUH) mentioned the number of the body joints so precisely, at a time when nobody had any idea about human anatomy. Even now in the 21st century, many people still do not know the number of joints in their bodies, including many professors of orthopedics. I asked many of them, and their answer was between 200 and 300 bones, and around 100-300 joints.