Final answer:
The tasbih 'SubhanAllah' is often mentioned as having benefits so vast that even angels cannot keep count. However, without explicit scriptural references, it is difficult to definitively attribute this to a specific phrase among those listed.
Step-by-step explanation:
The benefits of the tasbih 'SubhanAllah' are considered to be so numerous that even angels cannot keep track of them. In Islamic tradition, tasbih refers to the act of reciting certain phrases to glorify Allah (God) and is a common form of dhikr (remembrance of God). The four options given, SubhanAllah, Alhamdulillah, Allahu Akbar, and La ilaha illallah are all phrases used in tasbih to remember and praise God.
Each phrase has a significant meaning in Islam. 'SubhanAllah' translates to 'Glory be to Allah,' which is said to express admiration for God's perfection. 'Alhamdulillah' means 'All praise is due to Allah,' acknowledging Allah's bounties and blessings. 'Allahu Akbar' means 'Allah is the greatest,' signifying Allah's greatness over everything else. Lastly, 'La ilaha illallah' translates to 'There is no deity but Allah,' affirming the belief in the oneness of God.
While the exact phrase that is being referred to in the question is not explicitly mentioned in reliable Islamic sources, all of these phrases are highly revered and their recitation holds great merit in Islamic faith. Therefore, without a specific Hadith or Quranic reference, it is difficult to definitively say which tasbih's benefits are so vast that even angels cannot enumerate them.