who took part in the battle of Badr and was a Naqib (a person heading a group of six persons), on the night of Al-'Aqaba pledge: ...
So the Hadith itself is defining it as "a person heading a group of six persons". But it is not clear who are these six persons, why Naqib should be their head, what is the purpose of this 7-person community and what is their importance in Islam.
According to Wikipedia:
Naqib, plural naqib, is an Arabic word meaning "He who investigates, verifies". It can refer to:
- The "twelve naqibs", the leading missionaries of the Hashimiyya movement who prepared the Abbasid Revolution in Khurasan.
- The naqib al-ashraf, an honorary position in various Islamic states, given to the head representative of the ashraf, the descendants of Muhammad.
Again there is definition and no clarification in details.
So, who is Naqib in the context of Sahih al-Bukhari 18?