89. To one who pronounces his love for you, for Allah’s sake
الدعاء لمن قال إني أحبك في الله
أَحَبَّـكَ الّذي أَحْبَبْـتَني لَه
Aḥabbaka ‘lladhī aḥbabtanī lah.
May He for Whose sake you love me, love you.
Source: Abu Dawud 4/333. Al-Albani graded it good in Sahih Abu Dawud 3/965.