AHMAD-ZUHD 1684:
from Sufyān —
[Machine] Umar ibn Abdul Aziz, may Allah have mercy on him, said: "Whoever does not count his words as sins, his sins will increase."
الزهد لأحمد ١٦٨٤:
عن سفيان —
قَالَ عُمَرُ بْنُ عَبْدِ الْعَزِيزِ رَحِمَهُ اللَّهُ «مَنْ لَمْ يُعِدَّ كَلَامَهُ ذُنُوبَهُ كَثُرَتْ ذُنُوبُهُ»