وَحَدَّثَنِي عَنْ مَالِكٍ، قَالَ بَلَغَنِي أَنَّ مِسْكِينًا، اسْتَطْعَمَ عَائِشَةَ أُمَّ الْمُؤْمِنِينَ وَبَيْنَ يَدَيْهَا عِنَبٌ فَقَالَتْ لإِنْسَانٍ خُذْ حَبَّةً فَأَعْطِهِ إِيَّاهَا فَجَعَلَ يَنْظُرُ إِلَيْهَا وَيَعْجَبُ فَقَالَتْ عَائِشَةُ أَتَعْجَبُ كَمْ تَرَى فِي هَذِهِ الْحَبَّةِ مِنْ مِثْقَالِ ذَرَّةٍ

Yahya related to me that Malik said, "I heard that a beggar askedfor food from A'isha, umm al-muminin, while she had some grapes. Shetold some one to take him one grape. He began to look in amazement.A'isha said, 'Are you amazed? How many atoms' weights do you see inthis grape?' " (referring to Sura 99 ayat 7). Translation Not Available

Book Ref: Muwatta Imam Malik Book 58 Hadith 1849
Web Ref:  Muwatta Imam Malik Book 58 Hadith 6