It is narrated from Sayyiduna Abu Umamah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever, after the Fajr prayer, before changing the position of his feet (that is, while still sitting in the same posture), says these words one hundred times: 'La ilaha illallahu wahdahu la sharika lahu, lahul-mulku wa lahul-hamdu, yuhyi wa yumitu, biyadihil-khayru, wa huwa 'ala kulli shay'in qadir' (There is no god worthy of worship but Allah, alone, He has no partner; to Him belongs the dominion and to Him belongs all praise; He gives life and He gives death; in His hand is all good, and He has full power over all things), he will be on that day the best of the people of the earth in deeds, except for one who said the like of what he said or said more than that."
No one narrated this hadith from Abu Ghalib except Adam bin al-Hakam (may Allah have mercy on him), and no one narrated it from Adam except Abd al-Samad bin Abd al-Warith (may Allah have mercy on him).
Hadith Referenceالمعجم الأوسط / باب الميم / 7200
Hadith Takhrij«أخرجه الطبراني فى «الكبير» برقم: 7533، 8075»