Is the remembrance (dhikr) mentioned in the Hadith: "None has the right to be worshipped except Allah, alone, without partner, to Him belongs all sovereignty and praise, and He is over all things competent," a hundred times, better than prayers, reading Qur'an, and other deeds, or should one increase it in addition to them?

The recitation of "La ilaha illa Allah wahdahu la sharika lah, lahu al-mulku wa lahu al-hamd, wa huwa ala kulli shayin qadir" (There is no god but Allah, alone, without partner. To Him belongs all sovereignty and praise, and He is over all things competent) one hundred times is among the prescribed remembrances for which there is encouragement. The fact that this remembrance is preferred does not mean limiting oneself to it; rather, it is better to increase good deeds, as an increase in remembrance or in good works is superior. Reciting the Quran is absolutely the best of deeds, but if there is a specific reason for a remembrance that necessitates its preference (such as the prescribed remembrances after the obligatory prayer), then devoting time to it at that moment is better. The obligatory prayers are superior to all other remembrances and supererogatory acts. The preference between remembrance and other good deeds (other than the obligatory acts) varies according to people's circumstances and what they are capable of. Thus, constant adherence to the remembrance of Allah is the best thing a servant can occupy himself with. Everything by which a servant draws closer to Allah, whether in word or deed, such as seeking knowledge and enjoining good, is considered remembrance of Allah.