A hundred of one phrase, and what it is worth
Equal to freeing ten slaves, and a shield for the whole day.
مَنْ قَالَ لاَ إِلَهَ إِلاَّ اللَّهُ، وَحْدَهُ لاَ شَرِيكَ لَهُ، لَهُ الْمُلْكُ وَلَهُ الْحَمْدُ، وَهْوَ عَلَى كُلِّ شَىْءٍ قَدِيرٌ. فِي يَوْمٍ مِائَةَ مَرَّةٍ، كَانَتْ لَهُ عَدْلَ عَشْرِ رِقَابٍ، وَكُتِبَ لَهُ مِائَةُ حَسَنَةٍ، وَمُحِيَتْ عَنْهُ مِائَةُ سَيِّئَةٍ، وَكَانَتْ لَهُ حِرْزًا مِنَ الشَّيْطَانِ يَوْمَهُ ذَلِكَ، حَتَّى يُمْسِيَ، وَلَمْ يَأْتِ أَحَدٌ بِأَفْضَلَ مِمَّا جَاءَ بِهِ إِلاَّ رَجُلٌ عَمِلَ أَكْثَرَ مِنْهُ
Lā ilāha illa-llāhu waḥdahu lā sharīka lah, lahu-l-mulku wa lahu-l-ḥamd, wa huwa ʿalā kulli shay'in qadīr. (×100)
“There is no god but Allah alone, with no partner. To Him belongs the dominion and to Him is praise, and He is over all things capable.”
Whoever says it a hundred times in a day is guarded from Satan until evening, and no one brings better than it except someone who said it more.
The full narration
Narrated Abu Huraira:Allah's Messenger (ﷺ) said," Whoever says: "La ilaha illal-lah wahdahu la sharika lahu, lahu-l-mulk wa lahul- hamd wa huwa 'ala kulli shai'in qadir," one hundred times will get the same reward as given for manumitting ten slaves; and one hundred good deeds will be written in his accounts, and one hundred sins will be deducted from his accounts, and it (his saying) will be a shield for him from Satan on that day till night, and nobody will be able to do a better deed except the one who does more than he
Source
Ṣaḥīḥ al-Bukhārī · 6403
- Agreed upon as authentic (al-Bukhārī / Muslim)