Shiva Purana
नैर्ऋते तु यजेत्खड्गम्पाशं वरुणगोचरे ॥ अंकुशं मारुते भागे पिनाकं चोत्तरे यजेत् ॥ २६॥
In the southwest one should worship the sword and the rope in the presence of Varuna. One should worship Ankusha in the wind and Pinaka in the north.
english translation
nairRte tu yajetkhaDgampAzaM varuNagocare ॥ aMkuzaM mArute bhAge pinAkaM cottare yajet ॥ 26॥
hk transliteration by Sanscript