وَيَجْتَهِدُ فِي الدُّعَاءِ.
Translation: He should exert himself in supplication.
Here ijtihād fī al-duʿāʾ does not mean independent legal reasoning; it means giving earnest effort and attention to supplication.
Pilgrims can pray for forgiveness, reform, and their lawful needs. The standing is not judged valid solely by the length of a person's supplication.