When the Prophet ﷺ migrated to Medina, Suraqa bin Malik bin Ju'sham pursued him. The Prophet ﷺ invoked evil on him, therefore the forelegs of his horse sank into the ground. Suraqa said (to the Prophet ), "Invoke Allah to rescue me, and I will not harm you. "The Prophet ﷺ invoked Allah for him. Then Messenger of Allah ﷺ felt thirsty and he passed by a shepherd. Abu Bakr said, "I took a bowl and milked a little milk in it and brought it to the Prophet ﷺ and he drank till I was pleased."  

لَمَّا أَقْبَلَ النَّبِيُّ ﷺ إِلَى الْمَدِينَةِ تَبِعَهُ سُرَاقَةُ بْنُ مَالِكِ بْنِ جُعْشُمٍ فَدَعَا عَلَيْهِ النَّبِيُّ ﷺ فَسَاخَتْ بِهِ فَرَسُهُ قَالَ ادْعُ اللَّهَ لِي وَلاَ أَضُرُّكَ فَدَعَا لَهُ قَالَ فَعَطِشَ رَسُولُ اللَّهِ ﷺ فَمَرَّ بِرَاعٍ قَالَ أَبُو بَكْرٍ فَأَخَذْتُ قَدَحًا فَحَلَبْتُ فِيهِ كُثْبَةً مِنْ لَبَنٍ فَأَتَيْتُهُ فَشَرِبَ حَتَّى رَضِيتُ  

As we went along with Messenger of Allah ﷺ from Mecca to Medina, we passed by a shepherd and Messenger of Allah ﷺ was feeling thirsty. He (Abu Bakr Siddiq) said: I milked for him a small quantity of milk (from his goat) and brought it to him (the Holy Prophet), and he drank it and I was very happy.  

أَبُو بَكْرٍ الصِّدِّيقُ لَمَّا خَرَجْنَا مَعَ النَّبِيِّ ﷺ مِنْ مَكَّةَ إِلَى الْمَدِينَةِ مَرَرْنَا بِرَاعٍ وَقَدْ عَطِشَ رَسُولُ اللَّهِ ﷺ قَالَ فَحَلَبْتُ لَهُ كُثْبَةً مِنْ لَبَنٍ فَأَتَيْتُهُ بِهَا فَشَرِبَ حَتَّى رَضِيتُ  

When Messenger of Allah ﷺ went forth from Mecca to Medina, Suraqa b. Malik b. Ju'shum pursued him. Messenger of Allah ﷺ invoked curse upon him, and his horse sank (in the desert). He (Suraqa) said: (Messenger of Allah), invoke blessings for me and I will do no harm to you. He (the Holy Prophet) then supplicated Allah. (At that time) he (the Holy Prophet) felt thirsty, and they happened to pass by a shepherd. Abu Bakr Siddiq said: I took hold of a bowl and milked some milk into it for Messenger of Allah ﷺ and gave it to him. He drank it and I was pleased.  

سَمِعْتُ الْبَرَاءَ يَقُولُ لَمَّا أَقْبَلَ رَسُولُ اللَّهِ ﷺ مِنْ مَكَّةَ إِلَى الْمَدِينَةِ فَأَتْبَعَهُ سُرَاقَةُ بْنُ مَالِكِ بْنِ جُعْشُمٍ قَالَ فَدَعَا عَلَيْهِ رَسُولُ اللَّهِ ﷺ فَسَاخَتْ فَرَسُهُ فَقَالَ ادْعُ اللَّهَ لِي وَلاَ أَضُرُّكَ قَالَ فَدَعَا اللَّهَ قَالَ فَعَطِشَ رَسُولُ اللَّهِ ﷺ فَمَرُّوا بِرَاعِي غَنَمٍ قَالَ أَبُو بَكْرٍ الصِّدِّيقُ فَأَخَذْتُ قَدَحًا فَحَلَبْتُ فِيهِ لِرَسُولِ اللَّهِ ﷺ كُثْبَةً مِنْ لَبَنٍ فَأَتَيْتُهُ بِهِ فَشَرِبَ حَتَّى رَضِيتُ  

When Messenger of Allah ﷺ went forth from Mecca to Medina, Suraqa b. Malik b. Ju'shum pursued him. Messenger of Allah ﷺ invoked curse upon him, and his horse sank (in the desert). He (Suraqa) said: (Messenger of Allah), invoke blessings for me and I will do no harm to you. He (the Holy Prophet) then supplicated Allah. (At that time) he (the Holy Prophet) felt thirsty, and they happened to pass by a shepherd. Abu Bakr Siddiq said: I took hold of a bowl and milked some milk into it for Messenger of Allah ﷺ and gave it to him. He drank it and I was pleased. (Using translation from Muslim 2009b)  

سَمِعْتُ الْبَرَاءَ بْنَ عَازِبٍ يَقُولُ لَمَّا أَقْبَلَ رَسُولُ اللهِ ﷺ مِنْ مَكَّةَ إِلَى الْمَدِينَةِ قَالَ فَتَبِعَهُ سُرَاقَةُ بْنُ مَالِكِ بْنِ جُعْشُمٍ فَدَعَا عَلَيْهِ رَسُولُ اللهِ ﷺ فَسَاخَتْ بِهِ فَرَسُهُ فَقَالَ ادْعُ اللهَ لِي وَلَا أَضُرُّكَ قَالَ فَدَعَا اللهَ لَهُ قَالَ فَعَطِشَ رَسُولُ اللهِ ﷺ فَمَرُّوا بِرَاعِي غَنَمٍ فَقَالَ أَبُو بَكْرٍ الصِّدِّيقُ فَأَخَذْتُ قَدَحًا فَحَلَبْتُ فِيهِ لِرَسُولِ اللهِ ﷺ كُثْبَةً مِنْ لَبَنٍ فَأَتَيْتُهُ بِهِ فَشَرِبَ حَتَّى رَضِيتُ