It wasnarrated from Ishaq bin 'Abdullah bin Ja'far that his fathersaid:
"The Messenger of Allah (ﷺ) said: 'Urge your dying onestosay: "La ilaha illallahul-Halimul-Karim, Subhan-AllahiRabbil-'Arshil-'Azim, Al-Hamdu Lillahi Rabbil-'alamin (None hastheright to be worshipped but Allah, the Forbearing, the Most Kind.Gloryis to Allah, Lord of the magnificent Throne; praise is toAllah, theLord of the worlds).'" They said: 'O Messenger ofAllah, what aboutthose who are alive?' He said: 'Even better,even better.'"
English reference: Vol. 1, Book 6, Hadith 1446
Arabic reference: Book 6, Hadith 1513