أن التخلي لنفل العبادة أفضل من الاشتغال بالنكاح
The position that withdrawal for voluntary worship can be preferable to being occupied with marriage.
This is presented as a subsidiary Shafiʿi preference, not a blanket rule applying equally to all individuals and situations.
Keep two questions apart:
Whether marriage is permitted, recommended or obligatory in a given case.
Whether marriage or extra voluntary worship is comparatively preferable under particular circumstances.
Such preferences also involve individual needs, the rights of others and additional evidence. A comparative fiqh argument should not be converted into a general recommendation against marriage.