Explanation
ALLAH is Al-Haseeb, The One who takes account of all actions and reckons them, The One who is the measurer and accountant of every deed, The One who is sufficient to meet all needs. The One who gives what is sufficient and necessary in every situation.
From the root word haa-seen-baa, we derive numerous classical Arabic connotations such as to reckon, number, count, calculate, compute, think, to give without sparing or scanting, to give without the receiver’s expectations, to suffice, to be sufficient, or without measure.
Quran References
And test the orphans [in their abilities] until they reach marriageable age. Then if you perceive in them sound judgment, release their property to them. And do not consume it excessively and quickly, [anticipating] that they will grow up. And whoever, [when acting as guardian], is self-sufficient should refrain [from taking a fee]; and whoever is poor – let him take according to what is acceptable. Then when you release their property to them, bring witnesses upon them. And sufficient is Allah as Accountant. (Quran 4:6)
And when you are greeted with a greeting, greet [in return] with one better than it or [at least] return it [in a like manner]. Indeed, Allah is ever, over all things, an Accountant. (Quran 4:86)
[ Allah praises] those who convey the messages of Allah and fear Him and do not fear anyone but Allah. And sufficient is Allah as Accountant. (Quran 33:39)