Mishkat al-Masabih 4488
Yahya b. Sa'id told that he heard Sa'id b. al-Musayyib say :
Abraham, the friend of the Compassionate One, was the first man to entertain a guest, the first man to be circumcised, the first man to clip his moustache, and he first man to notice grey hairs, so he said, “What is this, my Lord?” The Lord who is blessed and exalted replied, “Dignity, Abraham.” He said, “My Lord, give me more dignity.” 
Malik transmitted it.
وَعَنْ يَحْيَى بْنِ سَعِيدٍ أَنَّهُ سَمِعَ سَعِيدَ بْنَ الْمُسَيَّبِ يَقُولُ: كَانَ إِبْرَاهِيمُ خَلِيلُ الرَّحْمَنِ أوَّلَ النَّاس ضيَّف الضَّيْف وَأَوَّلَ النَّاسِ اخْتَتَنَ وَأَوَّلَ النَّاسِ قَصَّ شَارِبَهُ وَأَوَّلَ النَّاسِ رَأَى الشَّيْبَ فَقَالَ: يَا رَبِّ: مَا هَذَا؟ قَالَ الرَّبُّ تَبَارَكَ وَتَعَالَى: وَقَارٌ يَا إِبْرَاهِيمُ قَالَ: رَبِّ زِدْنِي وَقَارًا. رَوَاهُ مَالك