Anima Astrologiae or A Guide for Astrologers by William Lilly 1676

The 38th Consideration is, To consider if the Fortunes are Significators, whether they are Cadent from Angles, or from the Ascendant, so as not to behold the same, and be Retrograde; for under these Impediments they will be almost as bad as the Infortunes themselves, unless they be in reception.

39.Whether the Significator be in Reception