“The Messenger of Allah ﷺ granted permission to some camel herders regarding staying (in Mina),* and allowing them to stone the Pillars on the Day of Sacrifice, then to combine the stoning of two days after the sacrifice, so that they could do it on one of the two days.”** Malik said: “I think that he said: ‘On the first of the first of the two days, then they could stone them on the day of departure (from Mina).’” (Using translation from Ibn Mājah 3037)
أَرْخَصَ رَسُولُ اللهِ ﷺ لِرِعَاءِ الْإِبِلِ فِي الْبَيْتُوتَةِ أَنْ يَرْمُوا يَوْمَ النَّحْرِ ثُمَّ يَجْمَعُوا رَمْيَ يَوْمَيْنِ بَعْدَ النَّحْرِ فَيَرْمُونَهُ فِي أَحَدِهِمَا قَالَ مَالِكٌ ظَنَنْتُ أَنَّهُ فِي الْآخِرِ مِنْهُمَا ثُمَّ يَرْمُونَ يَوْمَ النَّفْرِ