2:84
And when We took your covenant, "Not will you shed your blood and not (will) evict yourselves from your homes," then you ratified while you (were) witnessing.

2:30
And when said your Lord to the angels, "Indeed, I (am) going to place in the earth a vicegerent, they said, "Will You place in it (one) who will spread corruption in it and will shed [the] blood[s], while we, [we] glorify (You) with Your praises and we sanctify [to] You." He said, "Indeed, [I] know what not you know."