How reliable is the quote "70 sins between you and [Allah] is much lighter than... just one sin between you and the people" by Sufyan al-Thawri?

A WordPress blog makes this quote (citing this source , in Arabic, so I can't read it): > وقال سفيان الثوري: إنك أن تلقى الله عز وجل بسبعين ذنباً فيما بينك وبينه أهون عليك من أن تلقاه بذنب واحد فيما بينك وبين العباد.
> Sufyan al-Thawri (may Allah have mercy on him) said: “That you meet Allah (the exalted) with 70 sins between you and Him is much lighter than for you to meet Him with just one sin between you and the people.” [1-2] I'm wondering if this quote is accurately attributed, i.e., Sufyan al-Thawri actually said (or wrote) this, and if so, is it reasonable to accept this as correct. Wikipedia lists Sufyan al-Thawri as an early scholar and a "great hadith scholar", which alone gives him some credibility. But perhaps there's more to it, e.g., being derived from the Qur'an or hadith. **Question**: How reliable is this quote?