Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
quran:44:57 –

As bounty from your Lord. That is what is the great attainment.  

a bounty from your Lord (fadlan is a verbal noun, with the sense of tafaddulan, and is in the accusative ˹dependent status˺ because of an implied ˹preceding˺ tafaddala). That is the supreme triumph.
القرآن:٤٤:٥٧ –

فَضْلًا مِنْ رَبِّكَ ۚ ذَٰلِكَ هُوَ الْفَوْزُ الْعَظِيمُ  

{فضلاً} مصدر بمعنى تفضلاً منصوب بتفضل مقدراً {من ربك ذلك هو الفوز العظيم}.