How sound and accurate is the meaning of the hadith narrated by Ibn Umar regarding the virtue of the dhikr "Allahu Akbar kabiran..." after every prayer and before sleep?

Ibn Abi Shaybah narrated from Ibn Umar that whoever says after every prayer and before sleeping: "Allah is the Greatest, Most Great, as many times as the even and the odd, and as many times as the complete, good, blessed words of Allah," three times, and "There is no god but Allah" similarly, it will be a light for him in his grave, and over the Bridge and the Sirat until he enters Paradise. "After every prayer" means the obligatory prayers, and "the even and the odd" includes all of creation, and "the complete, blessed words of Allah" are His legislative or cosmic words. As for the Bridge, it is the bridge between Paradise and Hell where the believers will settle their accounts with one another, and the Sirat is the path over which the believers will be given light, while the hypocrites will be deprived of it.