[Machine] Yes, we used to dislike the tawaf (circumambulation) between them (Safa and Marwa) because it was part of the pre-Islamic rituals, until this verse was revealed: "Indeed, As-Safa and Al-Marwah are among the symbols of Allah." (Verse 2:158 from Surah Al-Baqarah)  

نَعَمْ كُنَّا نَكْرَهُ الطَّوَافَ بَيْنَهُمَا لِأَنَّهُمَا مِنْ شَعَائِرِ الْجَاهِلِيَّةِ حَتَّى نَزَلَتْ هَذِهِ الْآيَةُ {إِنَّ الصَّفَا وَالْمَرْوَةَ مِنْ شَعَائِرِ اللهِ} [البقرة 158]  

"I asked Aishah about the words of Allah, the Mighty and Sublime: 'So it sin not a sin on him who perform Hajj or Umrah (Pilgrimage) of the House (the Kabah at Makkah) to perform the going (Tawaf) between them (as-Safa and Al-Marwah) and (I said): 'By Allah, there is no sin on anyone if he does not go between As-Safa and Al-Marwa.' Aishah said: 'What a bad thing you said, O son of my brother! If this Ayah was as you have interpreted it, there would be no sin on a person if he did not go between them. But it was revealed concering the Ansar. Before they accepted Islam, they sued to enter Ihram for the false goddess Manat whom they used to worship at Al-Mushallal. Whoever enter Ihram for her would refrain from going between As-Safa and Al-Marwah. When they asked the Messenger of Allah about that, Allah, the Might and Sublime, revealed: 'Verily As-Safa and Al-Marwah (Two mountains in Makkah) are of the Symbols of Allah. So it is not a sin on him who performs Hajj or Urmrah (Pilgrimage) of the House (the Kabah at Makkah) to perform the going (Tawaf) between them (As-Safa and Al-Marwah). Then the Messenger of Allah enjoined going between them so no one has the right to refrain from going between them.'" (Using translation from Nasāʾī 2968)  

أَنْ يَطَّوَّفَ بِهِمَا} [البقرة 158] فَوَاللهِ مَا عَلَى أَحَدٍ جُنَاحٌ أَنْ لَا يَطُوفَ بِالصَّفَا وَالْمَرْوَةِ؟ قَالَتْ عَائِشَةُ بِئْسَ مَا قُلْتَ يَا ابْنَ أُخْتِي إِنَّ هَذِهِ الْآيَةَ لَوْ كَانَتْ كَمَا أَوَّلْتَهَا كَانَتْ لَا جُنَاحَ عَلَيْهِ أَنْ لَا يَطَّوَّفَ بِهِمَا وَلَكِنَّهَا أُنْزِلَتْ فِي أَنَّ الْأَنْصَارَ قَبْلَ أَنْ يُسْلِمُوا كَانُوا يُهِلُّونَ لِمَنَاةَ الطَّاغِيَةِ الَّتِي كَانُوا يَعْبُدُونَ عِنْدَ الْمُشَلَّلِ وَكَانَ مَنْ أَهَلَّ لَهَا يَتَحَرَّجُ أَنْ يَطُوفَ بِالصَّفَا وَالْمَرْوَةِ فَلَمَّا سَأَلُوا رَسُولَ اللهِ ﷺ عَنْ ذَلِكَ أَنْزَلَ اللهُ {إِنَّ الصَّفَا وَالْمَرْوَةَ مِنْ شَعَائِرِ اللهِ فَمَنْ حَجَّ الْبَيْتَ أَوِ اعْتَمَرَ فَلَا جُنَاحَ عَلَيْهِ أَنْ يَطَّوَّفَ بِهِمَا} [البقرة 158] ثُمَّ قَدْ سَنَّ رَسُولُ اللهِ ﷺ الطَّوَافَ بِهِمَا فَلَيْسَ لِأَحَدٍ أَنْ يَتْرُكَ الطَّوَافَ بِهِمَا  

"I recited to Aishah: 'So it is not a sin on him who performs Hajj or Umrah (Pilgrimage) of the House to Perform the going Tawaf) between them (as-Safa and Al-Marwah) "I said: 'I do not care if I do not go between tham?' She said: 'What a bad thing you have said!' People at the time of the Jahiliyyah used not to go between them, but when Islam came and the Quran was revealed: 'Verily, As-Safa and Al-Marwah are of the symols of Allah, the Messenger of Allah went between them, and we did that with him, and thus it became part of Hajj.'" (Using translation from Nasāʾī 2967)   

بِئْسَ مَا قُلْتَ إِنَّمَا كَانَ أُنَاسٌ مِنْ أَهْلِ الْجَاهِلِيَّةِ لَا يَطُوفُونَ بَيْنَهُمَا فَلَمَّا كَانَ الْإِسْلَامُ وَنَزَلَ الْقُرْآنُ {إِنَّ الصَّفَا وَالْمَرْوَةَ مِنْ شَعَائِرِ اللهِ} [البقرة 158] الْآيَةَ «طَافَ رَسُولُ اللهِ ﷺ وَطُفْنَا مَعَهُ فَكَانَتْ سُنَّةً»