عَنْ سَهْلِ بْنِ مُعَاذٍ عَنْ أَبِيهِ (رَضِيَ اللَّهُ عَنْهُ) عَنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ أَنَّهُ قَالَ: ((مَنْ قَعَدَ فِي مُصَلَّاهُ حِينَ يُصَلِّي الصُّبْحَ حَتَّى يُسَبِّحَ الضُّحَى لَا يَقُولُ إِلَّا خَيْرًا غُفِرَتْ لَهُ خَطَايَاهُ وَإِنْ كَانَتْ أَكْثَرَ مِنْ زَبَدِ الْبَحْرِ))
Sayyiduna Mu'adh (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: Whoever, after performing the Fajr prayer, sits at his prayer place until he performs the Duha prayer, and during this period speaks only good words, his sins will be forgiven, even if they are more than the foam of the sea.