Is it permissible to say “‘adada khalqihi, wa rida nafsihi, wazinata ‘arshihi (as much as the number of His creation, as much as pleases Him, as much as the weight of His Throne)”every time after reciting Qur’an or dhikr?
Question

When I recite Qur’an, such as Surat al-Ikhlas, or az-Zalzalah, or al-Fatihah, is it permissible to say at the end of the surah: “‘adada khalqihi, wa rida nafsihi, wazinata ‘arshihi (as much as the number of His creation, as much as pleases Him, as much as the weight of His Throne)” or “Hasbi Allahu wa ni‘am al-wakil, ‘adada khalqihi, wa rida nafsihi, wazinata ‘arshihi, wa midaada kalimatihi (Allah is sufficient for me and He is the best disposer of affairs, as much as the number of His creation, as much as pleases Him, as much as the weight of His Throne, and as much as the ink of His words)? To sum up, my question is: is it permissible to mention these multiples after any deed I do?
Praise be to Allah.It was narrated from al-‘Irbad ibn Sariyah (may Allah be pleased with him) that the Prophet (blessings and peace of Allah be upon him) said: “You must adhere to my Sunnah and the way of the Rightly Guided Caliphs. Hold on to it and cling fast to it. And beware of newly-invented matters, for every newly-invented matter is an innovation and every innovation is a going astray.” Narrated by Abu Dawood (4607); classed as sahih by al-Albani in Sahih Abi Dawud.
Thus the Prophet (blessings and peace of Allah be upon him) enjoined adhering to the Sunnah, and he forbade newly-invented matters and innovations (bid‘ah).
It was narrated from Abu Dharr (may Allah be pleased with him) that the Messenger of Allah (blessings and peace of Allah be upon him) said: “There remains nothing that will bring you closer to Paradise and keep you far away from Hell but it has been explained to you.” Narrated by at-Tabarani in al-Mu‘jam al-Kabir (1647); classed as sahih by al-Albani in as-Sahihah (1803).
Thus he (blessings and peace of Allah be upon him) stated that he did not omit anything good but he enjoined us to do it, or anything bad but he forbade us to do it.
It is not part of his Sunnah, in word or in deed, to say any such words after finishing recitation of a surah of the Qur’an, and this is not something that any of his Companions did either. From that it is known that such a thing is not prescribed; rather it comes under the heading of innovation.
For more information, please see the answers to questions no. 126934 and 200089 .
And Allah knows best.