Halt at Muhassab is not something (significant from the point of view of the Shari'ah). It is a place of halt where Allah's Messenger (way peace be upon him) halted.
Allah's Messenger (ﷺ) did not command me to observe halt at al-Abtah when be departed from Mina, but I came and set up his (the Holy Prcphet's) tent (of my own accord) ; and he (Allah's Apostle) came and observed halt. This hadith is narrated through another chain of transmitters from Abu Rafi' who was (in charge) of the luggage of Allah's Apostle (ﷺ).
Allah's Messenger (ﷺ) said to us as we were at Mina: We would observe halt tomorrow at-Khaif of Banu Kinanah, where (the polytheists) had taken an oath on unbelief, and that was that the Quraish and Banu Kinanah had, pledged against Banu Hashim and Banu Muttalib that they would neither marry nor do any transaction with them unless they deliver Allah's Messenger (way peace be upon him) to them. And (this pledge was) taken at this (place) Muhassab.
God willing, when Allah has granted us victory, our halt tomorrow will be at Khaif, where they (the unbelievers of Mecca) had taken an oath on unbelief.
Ibn Umar (Allah be pleased with them) reported that al-'A'bbas b. Abd al-Muttalib (Allah be pleased with him) sought permission from Allah's Messenger (ﷺ) to spend in Mecca the nights (which be was required to spend) at Mina on account of his office of supplier of water, and he (the Holy Prophet) granted him permission.
While I was sitting along with Ibn 'Abbas (Allah be pleased with him) near the Ka'ba, there came a bedouin to him and said: What is the matter that I see that the progeny of your uncle supply honey and milk (as drink to the travellers), whereas you supply al-nabidh (water sweetened with dates)? Is it due to your poverty or due to your close-fistedness? Thereupon Ibn 'Abbas said: Allah be praised, it is neither due to poverty nor due to close-fistedness (but due to the fact) that Allah's Apostle (ﷺ) came here riding his she-came, and there was sitting behind him Usama. He asked for water, and we gave him a cup full of nabidh and he drank it, and gave the remaining (part) to Usama; and he (the Holy Prophet) said: You have done Food, You have done well. So continue doing like it So we do not like to change what Allah's Messenger (ﷺ) had commanded us to do.
Allah's Messenger (ﷺ) put me in charge of his sacrificial animals, that I should give their flesh. skins and saddle cloths as sadaqa, but not to give anything to the butcher, saying: We would pay him ourselves.