When the people of the Yemen came, the Messenger of Allah ﷺ said: The people of the Yemen have come to you and they are first to shake hands. (Using translation from Abū Dāʾūd 5213)

قَالَ رَسُولُ اللهِ ﷺ قَدْ جَاءَكُمْ أَهْلُ الْيَمَنِ هُمْ أَرَقُّ مِنْكُمْ قُلُوبًا قَالَ أَنَسٌ وَهُمْ أَوَّلُ مَنْ جَاءَ بِالْمُصَافَحَةِ