I suffered from an illness. The Messenger of Allah ﷺ came to pay a visit to me. He put his hands between my nipples and I felt its coolness at my heart. He said: You are a man suffering from heart sickness. Go to al-Harith ibn Kaladah, brother of Thaqif. He is a man who gives medical treatment. He should take seven ajwah dates of Medina and grind them with their kernels, and then put them into your mouth.  

مَرِضْتُ مَرَضًا أَتَانِي رَسُولُ اللَّهِ ﷺ يَعُودُنِي فَوَضَعَ يَدَهُ بَيْنَ ثَدْيَىَّ حَتَّى وَجَدْتُ بَرْدَهَا عَلَى فُؤَادِي فَقَالَ إِنَّكَ رَجُلٌ مَفْئُودٌ ائْتِ الْحَارِثَ بْنَ كَلَدَةَ أَخَا ثَقِيفٍ فَإِنَّهُ رَجْلٌ يَتَطَبَّبُ فَلْيَأْخُذْ سَبْعَ تَمَرَاتٍ مِنْ عَجْوَةِ الْمَدِينَةِ فَلْيَجَأْهُنَّ بِنَوَاهُنَّ ثُمَّ لِيَلُدَّكَ بِهِنَّ  

He who has a morning meal of seven ‘Ajwah dates will not suffer from any harm that day through poison or magic.  

عَنِ النَّبِيِّ ﷺ قَالَ مَنْ تَصَبَّحَ سَبْعَ تَمَرَاتِ عَجْوَةٍ لَمْ يَضُرُّهُ ذَلِكَ الْيَوْمَ سَمٌّ وَلاَ سِحْرٌ