The affix liṅ (Benedictive) (as well as kṛtya and loṭ (Imperative) ) is used (under similar circumstances in the sense of 1. direction 2. permission etc.) when the time is future by a muhūrta (48 minutes or an Indian hour); (or the Potential may be used as well when it signifies 'at this very moment').,
The words प्रैष &c. of the last sutra must be read into this. The force of च is to introduce the words कृत्या and लोट् from the last sutra, into this. Thus ऊर्ध्वं मुहूर्त्तादुपरि मुहूर्तस्य भवता खलु कठः कर्तव्यः, करणीयः, कार्यः, or भवान् खलु कटं कुर्यात (Potential) or करोतु (Imperative). 'You may make the mat after an Indian hour'; or 'you must &c', or 'it is proper time for you to make a mat just now'. Compare 3.3.9.,